#21339C#21339C

#21339C is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.3% C 0.170 H 268.8°. Best body text is #FFFFFF at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#21339C
RGB	rgb(33, 51, 156)
HSL	hsl(231, 65%, 37%)
HSV	hsv(231, 79%, 61%)
CMYK	cmyk(78.8%, 67.3%, 0%, 38.8%)
CIE-LAB	lab(26.99, 32.07, -58.87)
CIE-LCH	lch(26.99, 67.04, 298.58°)
OKLab	oklab(38.34% -0.0036 -0.1704)
OKLCH	oklch(38.34% 0.17 268.8)
XYZ	xyz(7.8097, 5.0904, 32.0170)
Luminance	0.0509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21339C #9C8A21

analogous

#21709C #21339C #4D219C

triadic

#21339C #9C2133 #339C21

tetradic

#21339C #9C2170 #9C8A21 #219C4D

square

#21339C #9C2170 #9C8A21 #219C4D

split-complementary

#21339C #9C4D21 #709C21

monochromatic

#0C1237 #162269 #21339C #2C44CF #5B6EDC

Accessibility & contrast

On white

10.41

#21339C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#21339C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21339C

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21339C	#FFFFFF	#000000	##FFFFFF
##21339C	1.00	10.41	2.02	10.41
#FFFFFF	10.41	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469F

Deuteranopia (green-blind)

#003A9A

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #21339c;
/* rgb */ color: rgb(33, 51, 156);
/* oklch */ color: oklch(38.3% 0.170 268.8);

Tailwind

colors: {
  custom: {
    50: '#726aba',
    500: '#21339c',
    950: '#000000',
  },
}

SCSS

$custom: #21339c;
$custom-light: #726aba;
$custom-dark: #000000;

JSON

{
  "hex": "#21339c",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 156
  },
  "hsl": {
    "h": 231.22,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.38338,
    "c": 0.17045,
    "h": 268.8
  },
  "luminance": 0.05091
}

Semantic roles & 50–950 ramp

primary

#21339C

secondary

#C1B158

accent

#CF40E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21339C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →